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https://issues.apache.org/jira/browse/PROTON-2124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16959279#comment-16959279
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ASF subversion and git services commented on PROTON-2124:
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Commit 2053be544f83b7dee10fa89dc8ec35a21879985a in qpid-proton's branch
refs/heads/master from Jiří Daněk
[ https://gitbox.apache.org/repos/asf?p=qpid-proton.git;h=2053be5 ]
PROTON-2124 Disable GS2-KRB5 and GS2-IAKERB SASL mechanisms if they are not
explicitly enabled (#199)
> Disable GS2-KRB5 SASL mechanism if it is not explicitly enabled
> ---------------------------------------------------------------
>
> Key: PROTON-2124
> URL: https://issues.apache.org/jira/browse/PROTON-2124
> Project: Qpid Proton
> Issue Type: Improvement
> Components: proton-c
> Reporter: Jiri Daněk
> Assignee: Andrew Stitcher
> Priority: Major
> Labels: release-notes, sasl, usability
> Fix For: proton-c-0.24.0
>
>
> I've noticed two additional kerberos sasl mechanisms that aren't blacklisted
> bq. [0xb80670]:0 <- @sasl-mechanisms(64)
> [sasl-server-mechanisms=@PN_SYMBOL[:"GS2-IAKERB", :"GS2-KRB5",
> :"SCRAM-SHA-1", :"SCRAM-SHA-256", :GSSAPI, :"GSS-SPNEGO", :"DIGEST-MD5",
> :OTP, :"CRAM-MD5", :ANONYMOUS]]
> They are GS2-IAKERB and GS2-KRB5. The GS2-KRB5 is the problematic one,
> allowing GS2-IAKERB does not stop proton from trying ANONYMOUS eventually.
> When GS2-KRB5 is enabled, I get this failure instead (in ctest tests, test
> 23, or when connecting {{sender}} example to {{broker}} example)
> bq. 23: amqp:unauthorized-access: SASL(-1): generic failure: GS2 Error:
> Unspecified GSS failure. Minor code may provide more information (Ticket
> expired) (Authentication failed [mech=none])
> I think those must be new. They appear on macOS, or if I install all
> cyrus-sasl packages on RHEL 7.7 or RHEL 8.1.
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